I applied online. The process took 2 months. I interviewed at IBM (Beijing, Beijing) in Mar 2015
Interview
There are three technical people asking the projects on your resume and introducing their projects. There is a HR coordinating the interview process. For your resume, they focused on your project experiences. Some detailed questions, like how you collect your data, and high-level questions, like the ultimate goal of your project, were asked.
First round was a case interview and final round was a behavioral interview with a more senior member of the team. Each interview was 45 minutes with one member from the team.
There was only 1 round of interview. Heard from recruiter 1 month after submitted application. Interview was 1 hour and did not seem structured at all; it went over a mix of technical and behavioral topics.
First stage of CV application, followed by an in-person assessment centre, then final interview with hiring manager in person in Southbank London office. Many assessment centres were running throughout 2017 when i applied.